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Ranolazine: uses, side effects & brands
Ranolazine prevents angina without much effect on heart rate or blood pressure. It belongs to the Anti-anginal (heart, extra) group. These improve blood or energy supply to the heart to reduce angina.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Anti-anginal (heart, extra) |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Long-term prevention of stable angina
- Add-on when other angina medicines are not enough
- Angina when heart rate or blood pressure is already low
Common brand names
- India: Ranozex, Cardilong
- Worldwide: Ranexa
Common side effects
- Dizziness
- Constipation
- Nausea
- Headache
Before taking it — precautions
- Tell your doctor about liver or kidney disease
- Interacts with many medicines (some antifungals, antibiotics, HIV drugs, digoxin, simvastatin); avoid grapefruit juice
- Tell your doctor about heart-rhythm problems or long QT
When to see a doctor urgently
- Fainting or palpitations (urgent)
- Angina that is worse or not settling at rest (urgent)
- Reduced urine or swelling (kidney problem)
Not a prescription — no dose shown. The right dose of ranolazine depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Does ranolazine stop an angina attack?
No. It prevents attacks over time; use your quick-acting spray or tablet for an attack.
Will it lower my heart rate or blood pressure?
It has little effect on either, which makes it useful when these are already low.
Should I swallow it whole?
Yes, extended-release tablets should not be crushed or chewed.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.